相关疑难解决方法(0)

当使用Jackson(de)序列化对象时,我试图在Java对象中包含原始JSON.为了测试这个功能,我写了以下测试:

public static class Pojo {
    public String foo;

    @JsonRawValue
    public String bar;
}

@Test
public void test() throws JsonGenerationException, JsonMappingException, IOException {

    String foo = "one";
    String bar = "{\"A\":false}";

    Pojo pojo = new Pojo();
    pojo.foo = foo;
    pojo.bar = bar;

    String json = "{\"foo\":\"" + foo + "\",\"bar\":" + bar + "}";

    ObjectMapper objectMapper = new ObjectMapper();
    String output = objectMapper.writeValueAsString(pojo);
    System.out.println(output);
    assertEquals(json, output);

    Pojo deserialized = objectMapper.readValue(output, Pojo.class);
    assertEquals(foo, deserialized.foo);
    assertEquals(bar, deserialized.bar);
}

代码输出以下行:

{"foo":"one","bar":{"A":false}}

JSON正是我想要看的东西.不幸的是,在尝试将JSON读回到对象时,代码失败并出现异常.这是一个例外:

org.codehaus.jackson.map.JsonMappingException:无法在[来源:java.io.StringReader@d70d7a;中的START_OBJECT标记中反序列化java.lang.String的实例.line:1,column:13](通过参考链:com.tnal.prism.cobalt.gather.testing.Pojo …